1672808801 has 4 divisors (see below), whose sum is σ = 1677176832. Its totient is φ = 1668440772.

The previous prime is 1672808743. The next prime is 1672808803. The reversal of 1672808801 is 1088082761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1088082761 = 89 ⋅12225649.

It is a cyclic number.

It is not a de Polignac number, because 1672808801 - 2¹⁸ = 1672546657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672808803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183441 + ... + 2184206.

It is an arithmetic number, because the mean of its divisors is an integer number (419294208).

Almost surely, 2^1672808801 is an apocalyptic number.

It is an amenable number.

1672808801 is a deficient number, since it is larger than the sum of its proper divisors (4368031).

1672808801 is an equidigital number, since it uses as much as digits as its factorization.

1672808801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4368030.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 1672808801 is about 40899.9853422957. The cubic root of 1672808801 is about 1187.0857770939.

The spelling of 1672808801 in words is "one billion, six hundred seventy-two million, eight hundred eight thousand, eight hundred one".